/*
 * This file is part of the eccOS Library.
 * Copyright (C) 2007.
 *
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 */
/*
 * Created on 19/11/2007
 */
package org.openeccos.model;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.AnnotationConfiguration;

import com.sas.framework.expojo.PersistenceProvider;
import com.sas.framework.expojo.hibernate.HibernatePersistenceProvider;
import com.sas.framework.expojo.hibernate.HibernatePersistenceProviderFactory;

/**
 * @author cgspinner@web.de
 */
public class EccosPersistenceProviderFactory extends HibernatePersistenceProviderFactory {

	protected SessionFactory sessionFactory;
	
	private boolean resetDatabase;

	@Override
	public PersistenceProvider createPersistenceProvider() {
		if (sessionFactory == null) {
			try {
				// Create the SessionFactory from hibernate.cfg.xml
				AnnotationConfiguration configuration = new AnnotationConfiguration();
				configuration.setNamingStrategy(new EccosNamingStrategy(configuration));
				configuration.configure();
				if (resetDatabase) {
					configuration.getProperties().setProperty("hibernate.hbm2ddl.auto", "create");
				}
				sessionFactory = configuration.buildSessionFactory();

			} catch (Throwable ex) {
				// Make sure you log the exception, as it might be swallowed
				System.err.println("Initial SessionFactory creation failed." + ex);
				throw new ExceptionInInitializerError(ex);
			}
		}
		return new HibernatePersistenceProvider(sessionFactory) {
			@Override
			public void persist(Object object)	{
				session.saveOrUpdate(object);
			}
			@Override
			public void close()	{
				super.close();
			}
		};
	}

	public void setResetDatabase(boolean resetDatabase) {
		this.resetDatabase = resetDatabase;
	}
}